19490104246 has 4 divisors (see below), whose sum is σ = 29235156372. Its totient is φ = 9745052122.

The previous prime is 19490104241. The next prime is 19490104261. The reversal of 19490104246 is 64240109491.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 19490104199 and 19490104208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19490104241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4872526060 + ... + 4872526063.

It is an arithmetic number, because the mean of its divisors is an integer number (7308789093).

Almost surely, 2^19490104246 is an apocalyptic number.

19490104246 is a deficient number, since it is larger than the sum of its proper divisors (9745052126).

19490104246 is an equidigital number, since it uses as much as digits as its factorization.

19490104246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9745052125.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 19490104246 in words is "nineteen billion, four hundred ninety million, one hundred four thousand, two hundred forty-six".